Results 31 to 40 of about 6,418 (210)
Multi-Wavelength Intra-Day Variability and Quasi-Periodic Oscillation in Blazars
Galaxies, 2017 We reviewed multi-wavelength blazars variability and detection of quasi-periodic oscillations on intra-day timescales. The variability timescale from a few minutes to up to less than a days is commonly known as intra-day variability.
Alok C. Gupta
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Accretion discs in blazars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Accepted for publication (17 August 2009) in ...
Jolley, E. J. D. +3 more
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The Blazar Sequence and Its Physical Understanding
Galaxies, 2022 Introduced in 1998 to attempt a first unified view of the broad-band emission properties of blazars, the blazar sequence has been extensively used in the past 25 years to guide observations as well as the physical interpretation of the overall emission ...
Elisa Prandini, Gabriele Ghisellini
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Discovery of Hidden Blazars [PDF]
Science, 2001 Every radio-loud quasar may have blazar activities, according to a unified scheme where the differences in both optical and radio observations of radio-loud quasars are the result of different viewing angles. We have predicted that blazars may be detected using emission line ratio variations caused by variable illumination of gas clouds in the broad ...
Ma, Feng, Wills, Beverley J.
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The CLASS blazar survey: testing the blazar sequence [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 We discuss the properties of the sources in the CLASS Blazar survey which aims at the selection of low radio power (P(5GHz)<10^25 W Hz^-1) blazars. We use VLA data from available catalogues and from our own observations to constrain the radio core-dominance of the sample which, together with the flat radio spectral index, is a signature of the ...
Caccianiga, A., Marchã, M. J. M.
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The Nature of Micro-Variability in Blazars
Galaxies, 2021 We present the results of a long-term study designed to investigate the nature of micro-variability in blazars carried out primarily at the Southeastern Association for Research in Astronomy (SARA) observatories.
James R. Webb +8 more
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FLARING PATTERNS IN BLAZARS [PDF]
The Astrophysical Journal, 2011 6 pages, 3 figures, accepted for publication in The Astrophysical ...
Paggi, A. +4 more
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Universe, 2022 Blazars are observed to emit non-thermal radiation across the entire electromagnetic spectrum from the radio to the very-high-energy γ-ray region. The broadband radiation measured from a blazar is dominated by emission from a relativistic plasma jet ...
Krishna Kumar Singh +4 more
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RoboPol: do optical polarization rotations occur in all blazars?
, 2016 We present a new set of optical polarization plane rotations in blazars, observed during the third year of operation of RoboPol. The entire set of rotation events discovered during three years of observations is analysed with the aim of determining ...
al., et +5 more
core +2 more sources
Asca Observations of Blazars [PDF]
Highlights of Astronomy, 1998 During the last years it has become evident that blazar class of AGN emit a lot of energy in the gamma-ray regime. It is generally thought that the non-thermal emission from blazars, observed from radio to GeV/TeV 7-rays, is radiation of very energetic particles via both synchrotron and Compton processes.
T. Takahashi, H. Kubo, G. Madejski
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